Imessage has been sent. Do not display read.

Does the subject want to ask, "imessage has been sent, what is the reason for not showing the read?" Reading receipt function is not turned on, and iMessage function is turned off.

1. Read receipt function is not turned on: iMessage has read receipt function to let the sender know that the message has been read.

2. Turn off the iMessage function: If the other party turns off the iMessage function, no message will be sent and the read status will not be displayed.